Electroconductive and Dielectric Properties of Composites Based on Bismuth Vanadate

• Authors: J. Torba , N. Golubko , E. Fortalnova , G. Kaleva , M. Safronenko , N. Venskovskii , E. Politova
• Languages of publication: EN

Abstracts

EN

Ceramic composites (100 - n)Bi_{4}V_{2}O_{11-z}-nCe_{0.9}Gd_{0.1}O_{1.9} with n=0÷25 wt% were prepared and studied by the X-ray diffraction, dielectric spectroscopy, and impedance methods. Slight increase in the unit cell volume accompanied by monotonous decrease in temperatures and broadening of the α-β and β-γ phase transitions with increasing fluorite content was observed in the composites studied. Increase in melting temperatures of composites with n ≥ 10 with the retention of their high ionic conductivity was also proved.

Keywords

EN

72.80.Tm; 77.22.Ch; 72.20.-i; 61.72.-y

Discipline

• 77.22.Ch: Permittivity (dielectric function)(for low-permittivity dielectric films, see 77.55.Bh; for high-permittivity gate dielectric films, 77.55.D-)
• 61.72.-y: Defects and impurities in crystals; microstructure(for radiation induced defects, see 61.80.-x; for defects in surfaces, interfaces, and thin films, see 68.35.Dv and 68.55.Ln; see also 85.40.Ry Impurity doping, diffusion, and ion implantation technology; for effects of crystal defects and doping on superconducting transition temperature, see 74.62.Dh)
• 72.20.-i: Conductivity phenomena in semiconductors and insulators(see also 66.70.-f Nonelectronic thermal conduction and heat-pulse propagation in solids; thermal waves)
• 72.80.Tm: Composite materials

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 117
• Issue: 1
• Pages: 24-26

Dates

published

2010-01

Contributors

author

J. Torba

• Karpov Institute of Physical Chemistry, Vorontsovo Pole St., 10, 105064, Moscow, Russia

author

N. Golubko

• Karpov Institute of Physical Chemistry, Vorontsovo Pole St., 10, 105064, Moscow, Russia

author

E. Fortalnova

• Karpov Institute of Physical Chemistry, Vorontsovo Pole St., 10, 105064, Moscow, Russia
• Peoples' Friendship University of Russia, Ordzhonikidze St., 3, 117198, Moscow, Russia

author

G. Kaleva

• Karpov Institute of Physical Chemistry, Vorontsovo Pole St., 10, 105064, Moscow, Russia

author

M. Safronenko

• Peoples' Friendship University of Russia, Ordzhonikidze St., 3, 117198, Moscow, Russia

author

N. Venskovskii

• Peoples' Friendship University of Russia, Ordzhonikidze St., 3, 117198, Moscow, Russia

author

E. Politova

• Karpov Institute of Physical Chemistry, Vorontsovo Pole St., 10, 105064, Moscow, Russia

References

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• 5. J.R. Dygas, M. Malys, F. Krok, W. Wrobel, A. Kozanecka, I. Abrahams, Solid State Ionics 176, 2085 (2005)
• 6. S. Ramesh, C. Vishnuvardhan Reddy, Acta Phys. Pol. A 115, 909 (2009)

Identifiers

DOI

10.12693/APhysPolA.117.24